IPC Subgroup
H04N 5/222 Studio circuitry; Studio devices; Studio equipment
Introduced: January 1985
Last revised: January 2006
Full Title
Details of television systems > Studio circuitry; Studio devices; Studio equipment
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC COMMUNICATION TECHNIQUE
- Subclass:
- PICTORIAL COMMUNICATION, e.g. TELEVISION
Additional Content
Limiting references
Cameras or camera modules comprising electronic image sensors; Control thereof
Application references
Studio equipment related to broadcast communication
Related Keywords
STUDIO EQUIPMENT for television
4 direct subcodes
Child Classifications
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- H04N 5/253 Picture signal generating by scanning motion picture films or slide opaques, e.g. for telecine
- H04N 5/257 Picture signal generators using flying-spot scanners
- H04N 5/262 Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects
- H04N 5/28 Mobile studios
Top Applicants
Top 10 applicants by patent filingsfor class H04, 2013–2023, worldwide · Source: EPO PATSTAT
- QUALCOMM US 97,396
- HUAWEI TECHNOLOGIES COMPANY CN 96,502
- SAMSUNG ELECTRONICS COMPANY KR 86,981
- TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 55,869
- HUAWEI TECHNOLOGIES COMPANY 55,349
- LG ELECTRONICS KR 53,649
- CANON 33,341
- SONY CORPORATION JP 32,761
- ZTE CORPORATION CN 32,274
- GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION 28,327